Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

John Casani, who has died aged 92, was an American spaceflight engineer who led the teams that pioneered Nasa’s explorations ...

As more satellites are launched into orbit, space agencies are looking at how to predict space weather events that could harm ...

We measure the extremely long distances between things in space by light years. A light year is the distance that light travels in one Earth year. Light travels at about 300,000 kilometres per second.

Objects from space are crashing into Earth’s atmosphere all the time. They just don’t always happen with the perfect timing of the June 26 meteor that blasted across the Atlanta area during the middle ...

A little-known population of asteroids sharing Venus's orbit has intrigued scientists. Their unstable trajectories could bring them closer to our planet. These celestial bodies, called co-orbitals or ...

These rare asteroids are classified by where they exist in relation to planetary orbits. The Atiras have orbits interior to Earth’s, while Vatiras orbit closer to the sun than Venus.

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A swarm of large asteroids likely lurking around Venus could one day pose an "invisible threat" to Earth if left unchecked, astronomers have warned.

A swarm of giant city-killer asteroids hiding near Venus poses an “invisible threat” to life on Earth, astronomers have warned in a new study. These space rocks, known as co-orbital asteroids, tag ...

Co-orbital asteroids – space rocks that travel alongside planets without fully orbiting them – are notoriously difficult to track. Venus currently hosts 20 known co-orbitals, including "Trojan" ...